Advertisements
Advertisements
प्रश्न
Which of the following statements are correct?
- Sound is produced by vibrations.
- Sound requires a medium for propagation.
- Light and sound both require a medium for propagation.
- Sound travels slower than light.
पर्याय
i & ii only
i, ii & iii only
ii, iii & iv only
i, ii & iv only
Advertisements
उत्तर
i, ii & iv only
Explanation:
Because light can travel in vacuum also but it is only sound that requires a medium to travel.
APPEARS IN
संबंधित प्रश्न
What do you mean by a vibratory motion?
Which wave property determines loudness?
The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
'Note' is a sound :
The wavelength of the vibrations produced on the surface of water is 2 cm. If the wave velocity is 16 ms-1, calculate:
- no. of waves produced in one second
- time required to produce one wave.
How does the speed of sound depend on (i) Amplitude, and (ii) Wavelength?
Name the Sound of the Frequency Given Below:
200 Hz
Give an example to show that light travels faster than sound?
The sound waves travel faster ______.
